My brand new stepper motor won’t turn by hand!

[et_pb_section fb_built=”1″ specialty=”on” _builder_version=”4.5.0″ _module_preset=”default” custom_padding=”20px||||false|false”][et_pb_column type=”3_4″ specialty_columns=”3″ _builder_version=”3.25″ custom_padding=”|||” custom_padding__hover=”|||”][et_pb_row_inner _builder_version=”4.5.0″ _module_preset=”default” background_color=”#3371a3″ custom_margin=”||||false|false” custom_padding=”||||false|false”][et_pb_column_inner saved_specialty_column_type=”3_4″ _builder_version=”4.5.0″ _module_preset=”default”][et_pb_text admin_label=”Header in blue background” _builder_version=”4.5.0″ text_font=”|700|||||||” text_text_color=”#ffffff” text_font_size=”30px” custom_margin=”|||10px|false|false” custom_padding=”|||10px|false|false”]Your Motor is Fine![/et_pb_text][/et_pb_column_inner][/et_pb_row_inner][et_pb_row_inner _builder_version=”4.5.0″ _module_preset=”default” column_structure=”1_2,1_2″][et_pb_column_inner saved_specialty_column_type=”3_4″ _builder_version=”4.5.0″ _module_preset=”default” type=”1_2″][et_pb_text _builder_version=”4.5.0″ _module_preset=”default” hover_enabled=”0″]Customer received some new stepper motors and found it very difficult to spin the shaft by hand. Naturally, the thought was the motors were ‘bad’. Normally, you can easily turn a stepper motor shaft by hand, and you can feel each of the 200 ‘detents’ as you rotate the shaft. However, these motors were very hard to turn by hand.[/et_pb_text][/et_pb_column_inner][et_pb_column_inner saved_specialty_column_type=”3_4″ _builder_version=”4.5.0″ _module_preset=”default” type=”1_2″][et_pb_image _builder_version=”4.5.0″ _module_preset=”default” title_text=”Stepper motor wires” src=”https://hobbycnc.com/wp-content/uploads/2018/11/Stepper-motor-wires.jpg” border_radii=”on|1px|1px|1px|1px” hover_enabled=”0″ custom_margin=”||0px|||” border_width_all=”1px” border_color_all=”#0c71c3″][/et_pb_image][/et_pb_column_inner][/et_pb_row_inner][et_pb_row_inner _builder_version=”3.25″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” custom_padding=”2px|||||”][et_pb_column_inner saved_specialty_column_type=”3_4″ _builder_version=”3.25″ custom_padding=”|||” custom_padding__hover=”|||”][et_pb_text _builder_version=”4.5.0″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” hover_enabled=”0″]

Well, the motor was just fine. Here’s the deal: you can see in the image how the wiring is stripped-back at the factory for testing. Depending on which wires happen to short-together during shipping and handling, the motor can be difficult to turn, or if all the wires are touching, the motor can’t be turned by hand! Separate the wires, and the ‘problem’ disappears.

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